Solid particle energy storage, heat storage, steam and hot water generation equipment

Abstract

The utility model discloses a kind of solid-state particulate energy storage and heat storage, steam, hot water generation equipment, it is related to steam and hot water preparation technical field, including the energy storage and heat storage main body of horizontal arrangement, energy storage and heat storage main body includes: main casing, filled with particulate heat storage substance;Heating element, setting in particulate heat storage substance, for particulate heat storage substance is heated;Heat exchange mechanism, including heat exchange pipeline, import main pipe and export main pipe, import main pipe is set to the bottom side of main casing, and import main pipe is connected with medium inlet pipe, for water is introduced;Export main pipe is set to the top side of main casing, and particulate heat storage substance is provided with multiple heat exchange pipelines, and the bottom of all heat exchange pipelines is communicated with import main pipe, and top is communicated with export main pipe;Export main pipe is also connected with medium outlet pipe, for steam or hot water is discharged.The solid-state particulate energy storage and heat storage, steam, hot water generation equipment in the utility model can reduce production cost, and is suitable for use.

Description

Technical Field

[0001] This utility model relates to the field of steam and hot water preparation technology, and in particular to a solid particulate matter energy storage and heat storage, steam and hot water generation equipment. Background Technology

[0002] Steam and hot water generating equipment is a device that converts various energy sources into heat energy to produce steam or hot water. It is widely used in industrial, commercial and civil fields.

[0003] However, existing steam and hot water generating equipment usually heats water directly with gas or other fuels to produce steam or hot water, or heats water directly with electric heating elements to produce steam or hot water. Its production cost is high and it cannot make full use of off-peak electricity.

[0004] Therefore, a solid particulate matter energy storage and heat storage, steam and hot water generation equipment is provided to solve the above-mentioned problems existing in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a solid particulate matter energy storage and heat storage, steam and hot water generation equipment to solve the problems existing in the prior art, reduce production costs, and be suitable for widespread use.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides a solid particulate matter energy storage and heat storage, steam, and hot water generation equipment, including a horizontally arranged energy storage and heat storage body, the energy storage and heat storage body comprising:

[0008] The main casing is filled with particulate heat storage material.

[0009] A heating element is disposed within the particulate heat storage material and is used to heat the particulate heat storage material;

[0010] The heat exchange mechanism includes heat exchange pipes, an inlet main pipe, and an outlet main pipe. The inlet main pipe is located on the bottom side of the main shell and is connected to a medium inlet pipe for introducing water. The outlet main pipe is located on the top side of the main shell. Multiple heat exchange pipes are arranged inside the granular heat storage material, and the bottom of all heat exchange pipes is connected to the inlet main pipe, and the top of all heat exchange pipes is connected to the outlet main pipe. The outlet main pipe is also connected to a medium outlet pipe for discharging the steam or hot water generated after heating the water.

[0011] Preferably, the granular heat storage material is further provided with a heating tube, and the heating element is disposed inside the heating tube;

[0012] The heating tubes are evenly distributed in multiple places, and each heating tube contains a heating element.

[0013] Preferably, the heating element is a resistance heating element; wherein the heating element can be connected to mains power to utilize off-peak electricity for heating, and / or the heating element is also connected to a wind power generation device and / or a solar power generation device.

[0014] Preferably, the heating element is connected to a three-phase power supply in a star configuration, or the heating element is connected to a delta configuration.

[0015] Preferably, it further includes a temperature sensor disposed within the particulate heat storage material for detecting the temperature of the particulate heat storage material; wherein, the temperature sensor is also signal-connected to an intelligent controller, the intelligent controller is signal-connected to the heating element, the temperature sensor is capable of transmitting the detected temperature data to the intelligent controller, and the intelligent controller controls the switching on and off of the heating element based on the temperature data.

[0016] Preferably, the main housing is further provided with multiple vertical partitions from front to back, and the vertical partitions are provided with multiple material passage holes to allow the granular heat storage material to pass through;

[0017] The adjacent vertical partitions, the frontmost vertical partition and the front end plate of the main housing, and the rearmost vertical partition and the rear end plate of the main housing are all connected by multiple tie rods.

[0018] Preferably, the particulate heat storage material includes basalt particles, quartz sand, kaolinite particles, and magnesium oxide particles.

[0019] Preferably, the system further includes a circulating air system, which comprises a circulating fan, a ventilation box, and an air outlet duct. The ventilation box is located inside the main housing, with an air inlet on one side for air intake and the other side connected to the air outlet duct. The air outlet duct extends into the granular heat storage material and has an air outlet. The air outlet duct includes a main air outlet pipe and branch air outlet pipes. The main air outlet pipe is horizontally arranged and one end is connected to the ventilation box. Multiple vertically arranged branch air outlet pipes are connected to both the upper and lower sides of the main air outlet pipe, and multiple air outlets are provided on each branch air outlet pipe.

[0020] The circulating fan includes a motor and fan blades. The fan blades are disposed inside the ventilation box. The motor is fixed to the outside of the main housing, and the output shaft of the motor extends into the ventilation box and is connected to the fan blades. The fan blades are rotated by the motor to realize the air intake of the air inlet and the air outlet of the air outlet.

[0021] Preferably, the energy storage and thermal storage body is provided in multiple groups, and the multiple groups of energy storage and thermal storage bodies are evenly distributed in an array.

[0022] The present invention achieves the following technical advantages over the prior art:

[0023] This utility model discloses a solid particulate matter energy storage and heat storage, steam, and hot water generation equipment, comprising a horizontally arranged energy storage and heat storage body. The energy storage and heat storage body mainly includes a main shell, a heating element, and a heat exchange mechanism. The main shell is filled with particulate heat storage material. The heating element is disposed within the particulate heat storage material for heating it. The heat exchange mechanism includes heat exchange pipelines, an inlet main pipe, and an outlet main pipe. The inlet main pipe is located on one side of the bottom of the particulate heat storage material and is connected to a medium inlet pipe for introducing water. The outlet main pipe is located on one side of the top of the particulate heat storage material. Multiple heat exchange pipelines are disposed within the particulate heat storage material, and the bottom of all heat exchange pipelines is connected to the inlet main pipe, and the top of all pipelines is connected to the outlet main pipe. The outlet main pipe is also connected to a medium outlet pipe for discharging the steam or hot water generated after heating the water.

[0024] This invention utilizes off-peak or green electricity to heat granular thermal storage materials via heating elements, storing energy within the granular thermal storage materials. Water is then introduced into the inlet main pipe through the medium inlet pipe, and subsequently enters the heat exchange pipeline to absorb the heat energy from the granular thermal storage materials. The steam or hot water generated after the water absorbs heat enters the outlet main pipe and is discharged through the medium outlet pipe for utilization. This invention, through its energy storage and thermal storage body, fully utilizes off-peak or green electricity, reducing the production cost of steam or hot water, and is suitable for widespread application. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a three-dimensional structural diagram of the energy storage and thermal storage body in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the energy storage and thermal storage body in an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the circulating air system in an embodiment of the present invention;

[0029] Figure 4This is a schematic diagram of the structure of the circulating fan in an embodiment of this utility model.

[0030] In the diagram: 100-Energy storage and thermal storage main body, 1-Main shell, 2-Heat exchange pipeline, 3-Outlet main pipe, 4-Inlet main pipe, 5-Medium outlet pipe, 6-Medium inlet pipe, 7-Temperature sensor, 8-Heating pipe, 9-Circulating air system, 901-Motor, 902-Ventilation box, 903-Air inlet, 904-Outlet main pipe, 905-Outlet branch pipe, 906-Air outlet, 907-Fan blade, 10-Vertical partition, 11-Drainage pipe. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] The purpose of this invention is to provide a solid particulate matter energy storage and heat storage, steam and hot water generation equipment to solve the problems existing in the prior art, reduce production costs, and be suitable for widespread use.

[0033] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Example 1

[0035] like Figures 1-4 As shown in the figure, this embodiment provides a solid particulate matter energy storage and heat storage, steam, and hot water generation equipment, mainly including a horizontally arranged energy storage and heat storage body 100. The energy storage and heat storage body 100 mainly includes a main shell 1, a heating element, and a heat exchange mechanism. The main shell 1 is filled with particulate heat storage material. The heating element is disposed in the particulate heat storage material for heating the particulate heat storage material. The heat exchange mechanism includes heat exchange pipes 2, an inlet main pipe 4, and an outlet main pipe 3. The inlet main pipe 4 is disposed on the bottom side of the main shell 1 and is connected to a medium inlet pipe 6 for introducing water (preferably pure water or desalinated water). The outlet main pipe 3 is disposed on the top side of the main shell 1. Multiple heat exchange pipes 2 are disposed in the particulate heat storage material, and the bottom of all heat exchange pipes 2 is connected to the inlet main pipe 4, and the top of all heat exchange pipes 2 is connected to the outlet main pipe 3. The outlet main pipe 3 is also connected to a medium outlet pipe 5 for discharging the steam or hot water generated after heating the water.

[0036] In this embodiment, off-peak electricity or green electricity is used to heat the granular heat storage material through a heating element, which can store energy in the granular heat storage material. Then, water is added to the inlet main pipe 4 through the medium inlet pipe 6, and then enters the heat exchange pipe 2 to absorb the heat energy of the granular heat storage material. The steam or hot water generated after the water absorbs heat enters the outlet main pipe 3 and is discharged through the medium outlet pipe 5 for use. In this utility model, the energy storage and heat storage body 100 can make full use of off-peak electricity or green electricity, reduce the production cost of steam or hot water, and is suitable for widespread application.

[0037] In this embodiment, a heating tube 8 is also provided inside the granular heat storage material, and the heating element is disposed inside the heating tube 8. The heating tube 8 can effectively protect the heating element while ensuring heating. The heating tube 8 can be a non-metallic tube such as a ceramic tube.

[0038] Furthermore, in this embodiment, multiple heating tubes 8 are evenly distributed, and each heating tube 8 penetrates the granular heat storage material in a horizontal direction. Each heating tube 8 is equipped with a heating element. Through the evenly distributed multiple heating tubes 8 and the heating elements inside them, different positions of the granular heat storage material can be heated, thereby achieving comprehensive heating of the granular heat storage material and improving the heating effect.

[0039] In a preferred embodiment, the multiple heating tubes 8 can be arranged in an array, for example, in a rectangular array, or in a circular array, or other arrangements can be selected, such as the multiple heating tubes 8 being arranged in a crisscross pattern, or in a surrounding or spiral arrangement.

[0040] In this embodiment, the heating element is preferably a resistance heating element, such as a resistance heating wire, which can extend into the heating tube 8 to heat the particulate heat storage material. The resistance heating wire is preferably a spiral heating wire to improve the heating effect. The heating element can be connected to mains power to utilize off-peak electricity for heating, reducing electricity costs. Alternatively, the heating element can be directly connected to wind power generation devices and solar power generation devices without the need for an inverter, utilizing wind or solar power for power generation. It should be noted that the wind power generation devices and solar power generation devices are mature existing technologies in the art, and will not be described in detail in this embodiment.

[0041] In this embodiment, the heating element is preferably connected in a three-phase star configuration. With this configuration, when the three-phase load is perfectly symmetrical (all heating elements have the same resistance), the neutral current is zero, ensuring balanced three-phase current and preventing excess current from returning to the grid. When using off-peak electricity for heating, the balanced load prevents three-phase imbalance in the grid, avoiding additional line losses, reduced transformer efficiency, and adverse effects on other electrical equipment caused by imbalance, thus meeting the requirements of the power grid company. When using wind power, the three-phase wind turbine itself outputs three-phase electricity. Connecting it to a balanced three-phase load can make the three-phase wind turbine operate more smoothly, reducing vibration and torque fluctuations, and improving power generation efficiency and equipment lifespan. Solar power generation devices also benefit from balanced loads.

[0042] Moreover, the standard industrial three-phase voltage (line voltage) is 380V. When a three-phase power supply is connected in a star configuration, the actual voltage that each heating element bears is the phase voltage of 220V (380V / √3≈220V). This allows the rated voltage of a single heating element to be designed to the common 220V level, making it easy to manufacture, technologically mature, and cost-effective.

[0043] Alternatively, the heating element can be connected in other ways as needed, such as a delta connection.

[0044] In this embodiment, a temperature sensor 7 is also included. The temperature sensor 7 is disposed within the particulate heat storage material and is used to detect the temperature of the particulate heat storage material. The temperature sensor 7 is also signal-connected to an intelligent controller, which is signal-connected to the heating element. The temperature sensor 7 can transmit the detected temperature data to the intelligent controller, which then controls the switching on and off of the heating element based on the temperature data. Specifically, when the temperature sensor 7 detects that the temperature of the particulate heat storage material reaches a preset temperature, the intelligent controller controls the heating element to shut down, stopping heating to prevent damage to the heating element due to excessively high heating temperatures. The preset temperature can be 500-600℃.

[0045] Furthermore, multiple temperature sensors 7 can be arranged from front to back to detect the temperature at different locations.

[0046] In this embodiment, the heat exchange pipeline 2 is preferably an S-shaped curved pipe, which is formed by connecting multiple S-shaped pipes sequentially from bottom to top, thereby increasing the travel distance of the heat exchange medium (water) within the granular heat storage material and improving the heat exchange effect. Furthermore, the heat exchange pipeline 2 can also be a finned pipe, that is, heat exchange fins are also sleeved on the outside of the heat exchange pipeline 2 (on the outside of each straight segment when it is an S-shaped curved pipe), increasing the heat exchange area and improving the heat exchange effect. The heat exchange fins are only sleeved on the outside of the heat exchange pipeline 2 and are not fixed to the heat exchange pipeline 2, or only at both ends are fixed to the heat exchange pipeline 2, so that when the heat exchange pipeline 2 expands, it can detach from the heat exchange fins to facilitate sliding relative to the granular heat storage material.

[0047] In this embodiment, the medium inlet pipe 6 can be connected to a water storage tank for water supply, and the inlet main pipe 4 can also be provided with a drain outlet. The drain outlet is connected to the water storage tank through a drain pipe 11, and a drain pump is also provided on the drain pipe 11. When the output water vapor or hot water meets the usage requirements and no further supply is needed, the water supply is stopped, the drain outlet is opened, and the high-temperature water is discharged into the water storage tank. This can recover and utilize the waste heat of the high-temperature water, and can prevent the high-temperature water in the heat exchange pipeline 2 from continuing to absorb heat and vaporize, causing the pressure in the heat exchange pipeline 2 to be too high, which could lead to the damage of the heat exchange pipeline 2. Alternatively, the water can be directly discharged to the outside through the drain outlet.

[0048] In this embodiment, a control valve is also provided on the medium outlet pipe 5 to facilitate control of the switch. Preferably, the control valve is an electrically controlled valve, which can be electrically controlled to prevent burns when manually switching on and off. In addition, electrically controlled valves can also be provided on the medium inlet pipe 6 and the drain pipe 11. The electrically controlled valve is signal-connected to the intelligent controller and the switch is controlled by the intelligent controller.

[0049] In this embodiment, the intelligent controller can be selected as needed, for example, it can be a PLC controller, and the intelligent controller can be connected to a control panel, which can be operated by the staff.

[0050] In this embodiment, the main housing 1 is further provided with multiple vertical partitions 10 arranged from front to back. The vertical partitions 10 are perpendicular to the length direction of the main housing 1, and multiple material passage holes are opened on the vertical partitions 10 to allow the granular heat storage material to pass through. By setting multiple vertical partitions 10, the overall stability of the structure can be improved. Among them, adjacent vertical partitions 10, the frontmost vertical partition 10 and the front end plate of the main housing 1, and the rearmost vertical partition 10 and the rear end plate of the main housing 1 are all connected by multiple tie rods, which can form a stable internal skeleton structure, prevent the vertical partitions 10 from tilting, deforming or shifting, and prevent the internal material from squeezing the main housing 1, causing it to deform or even crack.

[0051] In this embodiment, the particulate heat storage material may include basalt particles, quartz sand, kaolinite particles, magnesium oxide particles, etc. In this embodiment, basalt particles, quartz sand, kaolinite particles, magnesium oxide particles, etc. are used as the main raw materials. They have high specific heat capacity and low cost. While ensuring the heat storage effect, the overall cost can be reduced. Moreover, the above-mentioned heat storage materials have high melting points and can withstand high heating temperatures to heat the heat exchange medium in the heat exchange pipeline 2.

[0052] Alternatively, other materials with high specific heat capacity and low cost can be selected as heat storage materials as needed.

[0053] In this embodiment, a circulating air system 9 is also included. The circulating air system 9 includes a circulating fan, a ventilation box 902, and an air outlet pipe. The ventilation box 902 is located inside the main housing 1. An air inlet 903 is provided on one side for air intake, and the other side is connected to the air outlet pipe. The air outlet pipe extends into the granular heat storage material and is provided with an air outlet 906.

[0054] The air outlet pipe includes a main air outlet pipe 904 and a branch air outlet pipe 905. The main air outlet pipe 904 is horizontally arranged and one end is connected to the ventilation box 902. Multiple vertically arranged branch air outlet pipes 905 are connected to the upper and lower sides of the main air outlet pipe 904. Multiple air outlets 906 are opened on any branch air outlet pipe 905.

[0055] The circulating fan includes a motor 901 and a fan blade 907. The fan blade 907 is disposed inside the ventilation box 902. The motor 901 is fixed to the outside of the main housing 1, and the output shaft of the motor 901 extends into the ventilation box 902 and is connected to the fan blade 907. The motor 901 drives the fan blade 907 to rotate, which enables the intake of air into the ventilation box 902 and the exhaust of air from the exhaust pipe, thereby realizing the circulation of hot air inside the main housing 1 and improving the heat exchange effect. It also prevents cold air from entering the main housing 1 or hot air from being discharged from the main housing 1, thus reducing heat loss.

[0056] In this embodiment, the outer side of the main shell 1 is also wrapped with a heat insulation layer for heat preservation and to reduce heat loss; wherein, the heat insulation layer can be selected according to specific working needs, such as ceramic fiber cotton or rock wool board.

[0057] In this embodiment, multiple sets of the energy storage and heat storage body 100 can be provided, and the multiple sets of the energy storage and heat storage body 100 are evenly distributed in an array. By providing multiple sets of the energy storage and heat storage body 100, the energy storage and heat storage capacity can be improved.

[0058] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A solid particulate matter energy storage, heat storage, steam, and hot water generation device, characterized in that: The energy storage and thermal energy storage unit (100) is horizontally arranged, and the energy storage and thermal energy storage unit (100) includes: The main shell (1) is filled with particulate heat storage material; A heating element is disposed within the particulate heat storage material and is used to heat the particulate heat storage material; The heat exchange mechanism includes heat exchange pipes (2), an inlet pipe (4), and an outlet pipe (3). The inlet pipe (4) is located on the bottom side of the main shell (1) and is connected to a medium inlet pipe (6) for water to be introduced. The outlet pipe (3) is located on the top side of the main shell (1). Multiple heat exchange pipes (2) are provided inside the granular heat storage material. The bottom of all heat exchange pipes (2) is connected to the inlet pipe (4), and the top of all heat exchange pipes (2) is connected to the outlet pipe (3). The outlet pipe (3) is also connected to a medium outlet pipe (5) for discharging the steam or hot water generated after the water is heated.

2. The solid particulate matter energy storage, heat storage, steam, and hot water generation equipment according to claim 1, characterized in that: The granular heat storage material is also provided with a heating tube (8), and the heating element is disposed inside the heating tube (8); The heating tubes (8) are evenly distributed in multiple places, and each heating tube (8) contains a heating element.

3. The solid particulate matter energy storage, heat storage, steam, and hot water generation equipment according to claim 2, characterized in that: The heating element is a resistance heating element; wherein the heating element can be connected to mains power to use off-peak electricity for heating, and / or the heating element is also connected to a wind power generation device and / or a solar power generation device.

4. The solid particulate matter energy storage, heat storage, steam, and hot water generation equipment according to claim 2, characterized in that: The heating element is connected to a three-phase power supply in a star configuration, or the heating element is connected to a delta configuration.

5. The solid particulate matter energy storage, heat storage, steam, and hot water generation equipment according to claim 4, characterized in that: It also includes a temperature sensor (7), which is disposed inside the particulate heat storage material and is used to detect the temperature of the particulate heat storage material; wherein, the temperature sensor (7) is also connected to the intelligent controller, the intelligent controller is connected to the heating element, and the temperature sensor (7) can transmit the detected temperature data to the intelligent controller, and the intelligent controller controls the switching of the heating element according to the temperature data.

6. The solid particulate matter energy storage, heat storage, steam, and hot water generation equipment according to claim 1, characterized in that: The main housing (1) is also provided with multiple vertical partitions (10) from front to back, and the vertical partitions (10) are provided with multiple material passage holes, which can allow the granular heat storage material to pass through; Among them, the adjacent vertical partitions (10), the frontmost vertical partition (10) and the front end plate of the main shell (1), and the rearmost vertical partition (10) and the rear end plate of the main shell (1) are all connected by multiple tie rods.

7. The solid particulate matter energy storage, heat storage, steam, and hot water generation equipment according to claim 1, characterized in that: It also includes a circulating air system (9), which includes a circulating fan, a ventilation box (902), and an air outlet pipe. The ventilation box (902) is located inside the main shell (1), with an air inlet (903) on one side for air intake and the other side connected to the air outlet pipe. The air outlet pipe extends into the granular heat storage material and has an air outlet (906). The air outlet pipe includes a main air outlet pipe (904) and branch air outlet pipes (905). The main air outlet pipe (904) is horizontally arranged and one end is connected to the ventilation box (902). Multiple vertically arranged branch air outlet pipes (905) are connected to both the upper and lower sides of the main air outlet pipe (904). Multiple air outlets (906) are opened on any one of the branch air outlet pipes (905). The circulating fan includes a motor (901) and a fan blade (907). The fan blade (907) is disposed inside the ventilation box (902). The motor (901) is fixed to the outside of the main housing (1), and the output shaft of the motor (901) extends into the ventilation box (902) and is connected to the fan blade (907). By driving the fan blade (907) to rotate through the motor (901), air can be introduced into the air inlet (903) and air can be discharged from the air outlet pipe.

8. The solid particulate matter energy storage, heat storage, steam, and hot water generation equipment according to claim 1, characterized in that: The medium inlet pipe (6) is also connected to a water storage tank for water supply. The inlet main pipe (4) is also provided with a drain outlet, which is connected to the water storage tank through a drain pipe (11).

9. The solid particulate matter energy storage, heat storage, steam, and hot water generation equipment according to claim 1, characterized in that: The energy storage and thermal storage body (100) is provided in multiple sets, and the multiple sets of energy storage and thermal storage bodies (100) are evenly distributed in an array.

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